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Master Spa Temp Sensors & Pressure Switches

We carry the complete line of replacement Master Spa temperature sensors and pressure switches, in stock and ready to ship immediately! Every Master Spa temperature sensor we sell is a factory-direct OEM replacement part, backed by the same high quality manufacturing as your Master Spa.

For help determining which Master Spa sensors you need for your spa, call our Customer Service team today at (855) 308-2149.

Additional Information About Master Spa Temp and Pressure Switches

From sensor cords, temp sensor mounts, and sensor assemblies to switch harnesses and pressure switches, Master Spa Parts offers you a wide range of replacement parts to keep your spa running efficiently.

Temperature sensors need to be replaced if they aren’t seeming to correspond with the temperature they show compared to the feel of the water. Many times, you will see the error code ‘OH’ appear on your main panel. Either the water temperature is 108 degrees, and you should replace the temperature sensor, or, if the water is cool, the sensor is bad and still needs to be replaced.

Questions About Temperature Sensors and Pressure Switches?

Our customer service team is happy to speak with you regarding what type of temp sensor or pressure switch you need and how to know what fits best with your spa. Call our team today at (855) 308-2149. We’re happy to help.

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  1. Designed specifically for the Legend Series Master Spas and the Michael Phelps Swim Spas starting with the 2014 model, the Temperature Sensor Mount is a replacement part that will fit the temperature sensor (SKU : 801821). If you don’t see your model listed, it may still work – so please give our customer service a call!

    Temp Sensor Mount
    $33.94
  2. Designed specifically for 2015 Michael Phelps Swim Spas this sensor is a replacement for the sensor in your spa’s heating system allowing you to control the heat of your spa from the external control panel. If you don’t see your model listed, it may still work – so please give our customer service a call!

    Sensor w/ 25' cord
    $44.09
  3. The 12-inch A&B M7 Temp/High Sensor is a replacement sensor for several Spa models including the Clarity, Down East, Contractor, Freedom, Getaway, H2X Swim Spas, Healthy Living Hot Spas, Legacy Whirlpool, Legend Series Master Spas, Michael Phelps Swim Spas and Twilight Series Spas. If you don’t see your model listed, it may still work – so please give our customer service a call!

    12 inch A&B M7 Temp/High Sensor
  4. The Sensor, 24” x ¼” F/560 M7 is a high limit temp replacement sensor for the MAS560 sensor found in most Down East and Legend Series Master Spas.

    Don’t let a broken sensor prevent you from your enjoying your spa when you want to.

     SENSOR, 24" X 1/4" F/560 M7
  5. The sensor assembly is specifically designed to go with Down East Spas and Legend Series Master Spas (select 1996-1999 models). It is a replacement for Balboa Dual Sensor Assembly with Temperature and Hi-Limit Sensor. Compatible with all Balboa systems that use this type of sensor.

    Sensor Assembly
    $70.86
  6. Temperature Sensor Mount. Used in older style Master Spas to secure the flow sensor to the spa. A new mount should always be installed when you are replacing your spa sensor unit.

    This mount should fit with most sensors.

    Temperature Sensor Mount
  7. The pressure switch in your spa controls the water pressure in your spa. The pressure switch harness is a replacement part for the original pressure switch harness that allows the pressure switch to be connected to the controls of your spa.

    Pressure Switch Harness
  8. This product is a pressure switch assembly specifically designed to go with select Down East and Legend Series Master Spas. If you don’t see your model listed, it may still work – so please give our customer service a call!

    Pressure Switch Assembly.
  9. The pressure switch - MAS400 - is specifically designed to replace the original pressure switches in the Legend Series Master Spas 2000 CS models. Control the water pressure in your spa with the right part.

    Pressure Switch - MAS400
  10. Don’t let a broken pump prevent you from enjoying your spa !

    The Legacy Spas 3 horsepower, 1 speed Pentair / Sta-Rite Pump is a replacement pump for select models of the Legacy Whirlpool and Twilight Series Spas.

    Ozone Photo Sensor
    $23.92
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